检测Spinner组件的问题

Question

iterating through a View's components the following code works:

if (child.getClass() == EditText.class) {
  ...
} else if (child.getClass() == TextView.class) {
  ...

but this doesn't:

} else if (child.getClass() == Spinner.class) {
  ...

What's the difference between the Spinner class an the other two ?

---

My mistake ... I was previousy checking if it was a ViewGroup object so It never reached the condition

Thanks

Answer 1

我的错误......我之前检查过它是否是一个ViewGroup对象所以它从未达到过这个条件

Answer 2

 if(child.getClass() instanceof Spinner.class){
 ...

edit:

I found Stackoverflow question that explain it:

Any reason to prefer getClass() over instanceof when generating .equals()?

Answer 3

Have you considered using

if(child instanceof EditText){}
else if(child instanceof TextView){}
else if(child instanceof Spinner){}